Barry, I thought I'd offer my 2 cents' worth here. I've had the Sigma for about 2 1/2 years now, and am quite pleased with it's performance. It has become my most used lens for both macro and general nature shooting. I wanted to mention, though, that after about a year and a half, the diaphragm jammed in the stopped down position. Nothing I could think of in the field would restore it, and it went off to Sigma. They repaired it under warranty, of course.
I don't know if this was a fluke (it's been trouble free since) but you should be aware of it. Good luck whatever you decide to do. Bill Sawyer Livonia, MI -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Barry Rice Sent: Wednesday, April 23, 2008 1:44 PM To: pdml@pdml.net Subject: Long macro lens Hey Folks, Thanks for the suggestions. I'm thinking that the Sigma 180mm F/3.5 sounds interesting. It is a bit pricey, but so is gas.... 1)My current macro of choice is the Tamron 90mm, which is usually the lens that lives on my camera. I'd really be looking for a longer lens than just a 100mm. I think something in the 200mm range would be ideal. 2)I've got some manual lenses up to 200; I'll try those with extension tubes. The problem with these manual lenses is that the minor extra steps of using them on the crippled mount can be really frustrating for my wife as she's running after butterflies. I photograph plants, and don't begrudge the extra moment, but it sure irritates her in her work! Cheers Barry Barry A. Rice, Ph.D. Invasive Species Specialist Invasive Species Team The Nature Conservancy V: 530-754-8891 http://tncweeds.ucdavis.edu -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
